Roller compacted concrete with high values of strength, frost resistance, and impermeability

摘要

1.Rollcretes can meet the requirements of construction concrete with a high strength, impermeability, and frost rsistance and, in particular, can be used with great effectiveness for constructing hydraulic structures such as arch dams, retaining walls, abutments, etc. Furthermore, road pavements, landing strips, and taxiways can be constructed from them.2.With consideration of the relative cheapness of low-cement rollcrete, in a number of cases it is possible to replace reinforced-concrete members by pure concrete ones, keeping in mind the high cost of reinforcing steel.3.The technological characteristics of rollcrete enable doing away with framework at the concrete-ground contact, which is important when constructing transition structures.4.It remains to develop a technology of equally strong joining of layers of high-strength rollcrete, which will require a rather large volume of experimental works.